Stove or furnace.



No. 758,051. PATENT-ED APR. 26, 1904.

J. M. 6: S. R. GROWNER. STOVE 0R FURNACE.

APPLICATION EILED AUG. 6, 1903. N0 MODEL.

UNTTED STATES Patented April 26, 1904.

PATENT OFFICE.

JAMES M. OROWVNER AND STATES R. OROI/VNER, OF MARION, IOWA.

FURNACE.

SPECIFICATION forming part of Letters Patent N 0. 758,051, dated April 26, 1904.

Application filed August 6, 1903.

To all whom it may concern.-

Be it known that we, J AMES M. CROWNER and STATES R. ORowNER, citizens of the United States, residing at Marion, in the county of Linn and State of Iowa, have invented a new and useful Improved Stove or Furnace, of which the following is a specification.

Our object is to provide improved means for heating and circulating air in stoves and furnaces; and our invention consists in the arrangement and combination of air heaters and conductors and an annular damper with the base and fuel and fire chamber of a stove or furnace, as hereinafter set forth, pointed out in our claims, and illustrated in the accompanying drawings, in which Figure 1 is a vertical central sectional view of a stove that shows the annular damper closed as required to direct air heated in the heaters to a flue that extends to the top of the stove to be discharged above the stove. Fig. 2 is a corresponding view'and shows the annular damper open, as required, for discharging the heated air from the air'heaters below the drum of the stove. Fig. 3 is a view showing the bottom of the stove perforated around the space covered by the ash-pan, as required, to to admit cold air to enter the chamber under the grate to enter the air-heaters.

The numeral 10 designates the base of the stove, and 12 the fuel and fire chamber. In the base is an ash-pan l3, and in the bottom of the fire-chamber is a grate 14. Inside of the fire-chamber and in contact therewith are located open-ended tubular air heaters and conductors 15, that are elbow-shaped at their tops and extend through the top portion of the fire-chamber 12. terminate at the bottom of the fire-chamber or extend down through the bottom of the stove, as shown in Fig. 1. A drum 16 is fitted on the fire-chamber 12 and provided with a continuous flange 17 at its bottom to project outward and downward and to engage an annular plate 18, adjustably connected therewith by means of double elbow-shaped holders 19, fixed to the plate and extended through perforations in the flange 17. The plate 18 is designed to serve as a damper, and when it is in position, as shown in Fig. 1, it closes the These air-heaters may Serial No. 168,429. (No model.)

annular chamber, composed of the flange 17 and plate 18, and directs the heated air from the air heaters and conductors 15 to a flue 20 at the rear of the stove to be conveyed and discharged above the top of the stove.

l/Vhen the plate 18 is lowered, as shown in Fig. 2, the heated air will be discharged against the inside of the flange l7 and distributed thereby around the stove and below the drum 16 to circulate and equalize the temperature surrounding the stove.

Having thus described the purpose of our invention, its construction and operation, the practical utility thereof will be readily understood by persons familiar with the art to which it pertains.

What we claim as new, and desire to secure by Letters Patent therefor, is-

1. In a stove or furnace, the combination of open-ended tubular air-heaters, a fuel and fire chamber, a drum having a flange at its bottom adjacent to the upper ends of the tubular heaters, an annular plate and means for adjusting said plate relative to the flange.

2. In a stove or furnace, open-ended tubular air-heaters located inside a fire-chamber and extended through said fire-chamber at their upper ends, a drum on top of the fire-chamber and a flange on the lower end of the drum, a ring-shaped plate around the fire-chamber below the said flange adjustable relative to the upper ends of the tubular air heaters and double elbow-shaped holders fixed to the plate and extended through apertures in the flange, arranged and combined to operate in the manner set forth for the purposes stated.

3. An improved stove or furnace comprising a base, a grate, a fuel and fire chamber, a plurality of open-ended air heaters and circulators, a drum having a flange adjacent to the upper ends of the tubular heaters, a flue at the rear of the drum, an annular plate and means for adjusting said plate relative to the flange, arranged and combined to operate in the manner set forth for the purposes stated.

J. M. OROWNER. STATES R. OROWNER. Witnesses:

HARRY HoLooMB, F. B. STROTHER. 

